221522015

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{631}}^1$

素因数の和:1151

約数の個数: 32

約数和(自身を含む): 313431552

約数和(自身を除く): 91909537

約数列:

[1, 5, 11, 13, 55, 65, 143, 491, 631, 715, 2455, 3155, 5401, 6383, 6941, 8203, 27005, 31915, 34705, 41015, 70213, 90233, 309821, 351065, 451165, 1549105, 3408031, 4027673, 17040155, 20138365, 44304403, 221522015]

約数ペア:

[(1, 221522015), (5, 44304403), (11, 20138365), (13, 17040155), (55, 4027673), (65, 3408031), (143, 1549105), (491, 451165), (631, 351065), (715, 309821), (2455, 90233), (3155, 70213), (5401, 41015), (6383, 34705), (6941, 31915), (8203, 27005)]